In some species of algae and fungi, for example, male and female sex cells are almost identical and both are usually motile. The union of similar gametes is known as isogamy. The process of gametes of dissimilar size and shape joining is called anisogamy or heterogamy.
Which organisms both male and female gametes are motile?
Dear student, In some organisms like fungi and algae both male and female gametes are motile. The male gametes need a medium through which it can move and can reach the female gamete. In plants like algae, bryophytes and pteridophytes water serve as the medium through which gamete transfer takes place.
When an organism has both the male and female gametes?
This may sound confusing, but some organisms are hermaphroditic, meaning they contain both male and female gametes. In this instance, those organisms are able to self-fertilize. Despite the fact that these gametes come from the same individual, we still consider this sexual reproduction, as two gametes are involved.
Which of the gametes are motile?
Gametes are an organism’s reproductive cells. … Each sperm cell, or spermatozoon, is small and motile. The spermatozoon has a flagellum, which is a tail-shaped structure that allows the cell to propel and move. In contrast, each egg cell, or ovum, is relatively large and non-motile.
In which fungi and algae both male and female gametes are motile?
In some species of fungi and algae, female and male gametes are motile and almost identical. Higher animals, plants, and some species of fungi and algae show a particular type of anisogamy known as oogamy. In oogamy, the female gamete is much larger than the male sex cell, and it is non-motile.
Are male gametes motile in angiosperms?
In flowering plants, both male and female gametes are non-motile.
In which organism gametes are non-motile?
Angiosperms produce non-motile gametes.
When male and female gametes are produced and unite the same body then it is called?
When the haploid male and female gametes unite in a process called fertilization, they form what is called a zygote. The zygote is diploid and contains two sets of chromosomes.
Which of the following female organism produce two types of gametes?
The organisms, which produce two kind of gametes are termed as heterogametic organisms. Male heterogamety is found in certain insects (Drosophila) and human being. Female heterogamety is has been found in butterflies moth and vertebrates like fish reptiles and birds.
What is the fusion of male and female gametes called?
In sexual reproduction new organisms are produced from the fusion of a male sex cell with a female sex cell. This fusion of gametes is called fertilisation.
Which has motile male gametes?
[Abstract] Motile male gametes (spermatozoids) of land plants are coiled and contain a modified and precisely organized complement of organelles that includes a locomotory apparatus with two to thousands of flagella.
Is female gamete is motile or nonmotile?
In organisms showing internal fertilisation, female gamete is non-motile.
Are male gametes of Pteridophytes motile?
Bryophytes and Pteridophytes require water for fertilization and have motile male gametes.
What are Homogametes or Isogametes?
Homogametes are also known as isogametes. Homogametes are similar in morphological appearance and male and female gametes can’t be distinguished. For example, in Rhizopus. Heterogametes are the gametes that are morphologically dissimilar and thus, male and female gametes can be distinguished.
Where is Chara found?
Chara is a fresh water, green alga found submerged in shallow water ponds, tanks, lakes and slow running water.
Is Chara a green algae?
Chara is a genus of charophyte green algae in the family Characeae. They are multicellular and superficially resemble land plants because of stem-like and leaf-like structures.